I continued writing the ECDSA driver this week and managed to complete it, including testing it on the simulator. My understanding of the concept of the functionalities of the ECDSA driver was obscure earlier and my colleague who worked on this has already left AESTE when I started implementing this Read more…
This week was really a busy week and it passed so fast that I didn’t even realize that today is Friday again! I have spent a lot of my time fixing the bugs in the SHA1 driver when it was tested on the Simulator. Later, I started to test the Read more…
My last week surprisingly didn’t involve any more hardware and I had opportunity to play again with some good old C. The task for this week was to write the missing software part for the ECDSA, that is the whole algorithm for signature generation and verification (keeping in mind that Read more…
This week was more general as I was mainly trying to optimize all the modules I did so far, cleaning codes and git. From notable things, I managed to cut the number of LUTs in ECDSA module from last week’s 2200 to 1601 while the number of slice registers went Read more…
Finally! After another week I managed to force the module to work (correctly!). I had a really hard time debugging it, since you can’t simply expect to find a mistake by looking at seemingly random combinations of 163bits. I was forced to run again and again through the whole code Read more…
Frustrating… that basically sums up whole previous week. Having all minor modules ready I started building the main part which is shortly speaking quite elaborate state machine using those modules in correct order. This turned out to be quite arduous work itself as one needs to be very careful when Read more…
Dear diary, This was my 9th week at Aeste and 2nd working on ECDSA. I am surprised but there actually is some progress in my current project. Field arithmetic part (most important) is almost done so starting from next week I can proceed to implement actual algorithm, which is not Read more…
“Welcome to Galois Field F(2m) where elements are made up and carry doesn’t matter” If this sounds familiar you should probably turn off TV sometimes (or youtube). Nothing much was happening this week, I mostly spent it struggling with understanding and at later stage designing the ECDSA module. Man, Read more…